Psychometric Properties Flashcards
What is the purpose of using standardized tests in a clinical setting?
Using standardized tests with clients helps to ensure that scoring and test administration are fixed and uniform throughout treatment plans carried out by an interdisciplinary team.
What is reliability?
Reliability describes the likelyhood a standardized measurement / tool can produce the same results over a period of time.
What is internal reliability?
The consistency of results within a test
What is external reliability? More specifically, test-retest reliability and interrater reliability.
Test-retest reliability is the degree in which results are stable when the same measurement tool is administered at 2 different points in time with the same sample.
Interrater reliability is the degree to which different clinicians get consistent results of the same behavior.
Define validity.
The extent to which the instrument measures what it sets out to measure.
Correlation does not equal causation
What is internal validity?
Internal validity assesses whether the experimental design and methods used in a study allow for a valid interpretation of the causal relationship between the independent variable (the variable being manipulated) and the dependent variable (the variable being measured)
Control research setting vs real-world impact
What is external validity?
External validity refers to the extent to which the results of a study can be generalized or applied to settings, populations, times, and measures other than those used in the specific study. In other words, it assesses the degree to which the findings of a research study can be generalized to real-world situations beyond the specific conditions under which the research was conducted.
Define fidelity?
Fidelity refers to the degree to which an experiment or study’s intended design, procedures, and conceptual framework accurately represents the intended theoretical or conceptual construct. It is the extent to which the procedures and measures used in a study faithfully reflect the underlying concepts or theories being investigated.
High fidelity in research implies that the study design, procedures, and measurements closely align with the intended theoretical framework or conceptual model. This alignment enhances the credibility of the study and allows for more confident interpretations of the results.
